Concrete-reinforcing structure.



u M. CERVELLO.

CONCRETE REINFORCING STRUCTURE.

' APPLICATION F|LED JAN-19.1915. 1,161,]. 12. Patented Nov. 23, 1915.

2 SHEETS-SHEET l 8 11 wan to! l/vitmeooao U. M. CERVELLO.

CONCRETE BEINFORCING STRUCTURE.

APPLICATION FILED JAN. I9. 1915- Patented Nov. 23, 1915.

2 SHEETSSHEET 2- 311101141 Vmerfo/Y Carl/e110 COLUMBIA PLANOGRAPH couwashmorolx. n. c.

pwrrnn snares; Parana opinion.

UMBERTO M. CERVELLO, or SPOKANE, w

ASI-IINGTON, yassreivon or 'rwo-rrrtrns tro- CHESTER LJLEHMANN, or SPOKANE, WASHINGTON.

CONCBETE-REINFQRCING STRUCTURE.

I To all whom it may concern ing at Spokane,'in the county of'Spokane Concrete-Reinforcing Structures, of which pended claims:

and State of lVashington, haveinvented certain new and useful Improvements in the following is a specification.

This invention relates to improvementsin reinforcing structuresforuuse. mthe format1on ofcolumns, beams, floor slabs and other structural partsflformed of concrete, which usually consist of a plurality I of reinforcing bars each provided with a seriesof reinforcing rodlike elements, the latter sometimes taking the form of st rrups.

One of the principalobjects of my inventionlis to providea novel means of'securing the so called stlrrups to the1r bars in such a manner that the stirrups' will be held in fixed or predetermined relation with respect to said bars. 7

Bars of this type have usually been provided with a flange or web in which an opening has been formed through which the stirrup could be projected into position, and one of the features of my invention consists in displacing the material adjacent the opening in such amanneras to change the form of the latter, from its original con tour, so as to cause one or more portions of the margins ofthe opening to engage the stirrup and lockthe latter in position.

A further feature consists in providing such opening with a circular portion. so

that the opening can be formed sufliciently close to the edge of the web or flange as to weaken the latter and thereby facilitate displacement ordistortion of the web. forthe purpose of engaging'portions of the margin of the opening with latter in position. i I I I I A still further object is to provide an opening formed in parto f circular and polygonal portions, in combination, with a stirrup of polygonal cross-section, so, that the ,3, polygonal portion will coact with the subf sequently distorted portion to lock the stir- I rup in position.

Further objects more fully described in connection with the Specification of Letters Patent.

" ures'of the drawings.

the stirrup to lock the i In the drawings Figure 1, is a. view in s1de elevation of, a. remforcing bar w1th a plurallty of stirrups secured thereto mac,-

cordance with my invention. Fig 2, is a sectional view taken on line 2-2 ofFig. 1. Fig. 3, is an enlarged side-elevation of a portion of the reinforcing bar with one mg my invention applied to a building structure with the, columns and beams .in elevation andthe floor slabs in section. b Fig.

6. shows the invention applied to a footing ivith reinforcements disposed in angularreation. I e

Patented Nov. 23, 1915. Application filed r nuar e, 1915. Serial No.3,063.

Like 1 characters of reference designate similar parts thronghout the different fig- My invention includes a reinforcing bar Lhaving a bodv portion whichmav be substantiallv cvlindrical in form and provided with a projecting flange or web 2. Associated with the reinforcing baris a plurality of rod-like reinforcing elements which are usually in the form of stirrups and which are shown in this form as indicated at 3. It is necessary to maintain the stirruns and bar in substantially fixed relation with respect-to each other, so thatthevwill retain the desired relative relation with respect to each other when the concrete body is being formed or molded about the same. The web 2 is shown provided with a plurality of openings 4 which are equi-distant n space at suitable distances apart lengths wise of the web 2. and thestirrups are ex-' tended or projected through said. opening.

One utility of my invention is illustrated in Fig. 5. wherein a floor slabv 5 isreinforced with the device of my invention, the stirrups S l cing relatively short. A floor beam is indicated at 6 and the "reinforcing bar 1, with relatively longer stirrups 3, are

shown .in dotted lines, embedded in :the beams in theseleoted manner desired to reinforce the same. At the ends ofthe beam I l a p 1 6, the stirrups Sextend into thecolumns 7. of the invention will be In Fig. 6, a footing 8 is shown in which I I g the reinforcements extend intransverse reaccompanylng. drawings and w ll be more particularly setforth in andbytheaplation. i

Fig. 4, the reinforcing rods 1 will be dis of a wire 9, which is rolled or otherwise posed upright with the webs 2 thereof projectingradially from the body' port ons of the bars. A reinforcing element in the form shaped to form a cylinder,the wire being also formed spirally and strung through the openings in the webs 2.

The foregoing structures are examples of y the various utilities of my invention, and I will now describe that portion of the structure which comprisesthe'novelty of the invention, reference being made more particularly to Figs. 1, 2 and 3. 1 e

. section; of the stirrups-3.

st1rrups 3 are square in cross section and the openings 4 are formed in'part of polygonal The openingsl are of a given cross section or contour, which is different from the cross As shown, the

and circular portions 10 and 11, respectively. The polygonal portion comprises angularly disposed portions which meet to dispose Ytheir apex 12, nearest the'bodyportionpf the bar 1." The circular portion 11 isdisv posed nearest the edge 13, of the web 2, and

in the present construction, the parts are so proportioned that the opening will be formed in amanner to materially weaken that part of the material 14, of thewelo 2,

I I be any danger of the'st'ockof'the web 2 be,

adjacent the opening t. This feature will not be carriedto the extent that there will ing broken. or ruptured when the hole or opening 4 isformed or punched, however,

a be described, WVhen the'stirrup is the reduction of stock adjacent the opening will be so reduced as to'facilitate an important manipulation thereof which will now in position, its upper sides will coact with the angular portions of the opening and'fit thereagainst. In order to anchor the stirrup in' position, I distort or displace material of the web adjacent the opening l, asindicated at 15, in such a man -15'is effected by operation upon the edge 13,

ner as to change the circular portion 11, or a part'thereof into a contourof polygonal formation, as indicated at 16, and which will be so shaped as to conform to and engage the lower corner 17, of the stirrup. Thus,it

. "will be seen, thatj this distortion of material will function in coactingrelation with the angular portions 10,at oppositepoints with respect to the olygonal stirrup 3, to securely anchor the latter in predetermined relation with respect to the. bar 1, Inthe most preferred construction, the distortion as indicated at 18; inv such a manner as'to the" opening having its margins distorted to I roughen said edge to more intimately embed the same inthe concrete. It; willthus be seen that I employ a stirrup off onelcross section and anopening having'a contouridifferent'from the cross section of the stirrup,

c f rm to and was ainst the face of th at -1 .1 w a 1 r.

IVhile I have herein shown anddescribed specific forms of my invention, I do not wish to be limited thereto except for such adjacent said openingbeing deformed 'to change the origmal contour of said openng and engage portions of the margins of said opening againstperipheral portions of that portion of the rod disposed in said opening to lock saidrod against movement in said openin substantially as described.

2. In a reln orc ngstructure, a reinforcing-bar hav ng'a weh provided with an opening therein having a first portion of one contour and a second portion of a different contour from said firstv portion,and a reinforcing rod of across-section corresponding to and having certain port ons of its periphery fitting in and against said. first portion of said opening, the material adjacent the said second portion of said opening being distorted to change said second contour portion of said opening from V.

to and to engage such changed portion of said opening against saidrod, substantially as described. w

3. In a reinforcing structure, a reinforc- 'its original form to a form corresponding ing bar provided with a web having an opening formed in part of circular and polygonal portions with the circular portion adjacent the edge of the web and sufficiently close to said edge to'wleaken the latter adjacent said opening, and a rod of' polygonal cross-section extending through said opening and having a portion of its peripheryfittingin and engagingthe polygonal' part of said opening, the material along said weakened edge 1 portion being dlstorted to change theform of said circular part of said opening to a polygonal form and force such-changed parts against said rod in oppositiontto the originally formed polygonal part of said opening to hold said rod in predetermined relation with respect to said bar, substantially as described, I V

4. Ina reinforcing, structure, a reinforcing bar p'rovided'jwith a web. having an opening formed in part of angular portions meeting to dispose theapex of such angular portion nearest the loody of ,said bar,

the remaining part of said opening being,

circular and being nearest the edgeof said webpand a stirrup .of square crossesection hav ng its b ght disposed n said-opening with one "corner of said hight, nearest, said edge of said Web, the material of the Web In testimony whereof I aflix my signabeing displaced to change a portion of the ture in presence of tWo Witnesses.

circular part of said opening to conform to UMBERTO M OERVELLO and fit against the sides of said last named corner portion thereby locking said stirrup Witnesses:

in fixed relation With respect to said bar, CHAS. W. HAY, substantially as described. EDNA BRAYLES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

